JPH0634034B2 - Clock movement with date and month indicator - Google Patents

Abstract

A watch movement has indicators for the date and the phases of the moon, these two indicators being automatically driven by the same intermediate revolving wheel member effecting one revolution every 24 hours, the one indicator by one tooth longer than the others and the other indicator by a pin which acts on a wheel having fifty-nine teeth integral with the indicator of the phases of the moon. A satisfactory engagement of the driving members in the corresponding teeth is ensured by a transverse displacement of the revolving wheel member resulting from the fact that a resilient arm of this revolving wheel member holds the edges thereof resting permanently against a fixed cylindrical stud having a flat surface.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The object of the present invention relates to a timepiece movement, and more specifically, to a date indicator having 31 toothed wheels and 59 toothed wheels. Relating to a timepiece movement including a monthly phase indicator integrated with the wheel and an intermediate rotation wheel member that is driven by a timepiece movement at a rotation speed of 24 hours to advance each indicator by one step for each rotation. Is.

[Conventional technology]

Timepiece movements of the type described above have long been known. The old Swiss patent (13243) discloses a mechanism with an intermediate wheel driven by a time wheel carrying a clock hand at a speed of one revolution every 24 hours. This intermediate wheel is equipped with two pins, one for each revolution of the eccentric wheel with 31 teeth for displaying the date and 59 for displaying the lunar phase. Move the eccentric wheel with teeth forward one step each.

In order to be able to read the date of the indicator integrated with an eccentric wheel with 31 teeth, the mechanism described in the known patent is only designed for the movement of a pocket watch.

In 1953, by B. humbert “Journal suissed′horl
"Les monters-calendrier modernes" on pages 96 and 97 of the publication ogerie.
In the system of Vacheron & Constantin in the paper (Modern day clock), the intermediate wheel is not the time wheel itself,
An analog mechanism has been proposed which is rotated by a pinion that engages a time wheel. Each rotation of the intermediate wheel advances the wheel with 31 teeth, which is integral with the date indicator, by one step with a pin, while on the other hand, the wheel with 59 teeth, which is integral with the moon phase indicator. To move forward with fingers. In this system, a wheel with 31 teeth is provided in the center of the timepiece movement, to which an indicator having the same diameter as the timepiece movement can be fixed.

[Problems to be Solved by the Invention]

Wheels with 59 teeth have small teeth, so careful adjustment of the rotating members of this mechanism is necessary.
If the adjustment in one direction is made inadequately, the wheel for driving the wheel with 59 teeth will not be driven completely by this finger and the jumper cooperating with the wheel will move the next tooth. The engagement with the space is insufficient. On the other hand, if the adjustment in the other direction is somewhat poor, the finger will move to 2
There is a risk of engaging one tooth at a time or engaging the base portion of the tooth base of a wheel with 50 teeth. This problem is even more acute in pocket watches because of their smaller dimensions.

Further, as a known date mechanism, there is a mechanism provided with means for moving the intermediate rotary wheel toward the date indicator when the intermediate rotary wheel member rotates by a predetermined angle. This type of device is described in Swiss Patent 651440, 604233.
The one disclosed in the issue is known. The subsequent patent has a characteristic structure that it is provided with a day indicator and means for driving the indicator. In this mechanism, the date indicator and the day indicator are driven simultaneously.

The object of the invention is to make the timepiece movement of the above-mentioned type smaller in size compared to known dimensions, while ensuring operation within normal tolerance limits.

[Means for Solving the Problems]

According to the present invention, in a timepiece movement having a date and month phase indicator, the date indicator has 31 teeth, the moon phase indicator is integral with a wheel having 59 teeth, and has an intermediate rotation. The indicator is moved forward by one step for each rotation as the wheel is rotationally driven by the timepiece movement so as to rotate once every 24 hours, and when the intermediate rotation wheel rotates by a predetermined angle, the intermediate rotation wheel moves. Date and month, characterized in that it is moved in the direction of the teeth of the date indicator and when the intermediate rotation wheel is rotated by another predetermined angle, the intermediate rotation wheel is moved in the direction of the wheel with 59 teeth. A timepiece movement having a phase indicator is provided.

According to a preferred embodiment of the present invention, movement of the intermediate wheel member can be advantageously used to drive the associated date and month phase indicators.

According to another preferred embodiment of the invention, the members which can be publicly used to drive the date and month phase indicators are elongated teeth and pins, respectively, whereby intermediate rotary wheel members are manufactured. Can be considerably simplified.

In a further embodiment of the invention, the most advantageous direction for movement of the intermediate rotary wheel member is given as the plane between the axes of rotation of the two indicators.

In another embodiment of the present invention, the moon phase can be displayed with a simple structure, and a push button control mechanism extending to the outside of the watch case is not necessary.

〔Example〕

The timepiece movement shown in FIG. 1 comprises a bottom plate 10, a dial 12, hands 14, and a time setting crown 16. The dial 12 has windows 18 and 20 through which a date indicator 22 and a moon phase indicator 24 are visible.

In FIG. 2, the dial and the moon phase indicator are not shown, so that the drive mechanism of the indicator can be seen. At the center of the movement, a time wheel 26 is provided, which carries a clock hand and a wheel 28 with six teeth. The wheel 28 engages with an intermediate rotating wheel member 30 which is shown schematically. The intermediate rotating wheel member 30 includes the bottom plate 1
It is possible to rotate around the stem shaft 32, which is fixed at zero. The date indicator 22 has a toothed wheel 3 with 31 teeth.
Integral with 4, these form one ring 35. The ring 35 is rotatably attached to the periphery of the bottom plate 10 so as to be coaxial with the clock hands. Moon phase indicator 24
Is fixed to the wheel 36. This wheel 36 is 59
It has individual teeth and is rotatably mounted on the time wheel 26. The toothed wheels 34 and 36 are rotary wheel members.
It is driven by 30, which will be described with reference to FIGS. 3 and 4. Indicators 22 and 24 are positioned by jumper springs 37 and 38 which cooperate with the teeth of toothed wheels 34 and wheels 36, respectively.

As can be seen from FIG. 3, the rotary wheel member 30 has twelve teeth and makes one revolution every 24 hours. The rotary wheel member 30 is formed to have two plane-pointed cam surfaces 39 and 40 and an elastic arm 42. The positional relationship between the arm 42 and the cam surfaces 39, 40 is such that the cam surfaces 39, 40 are flat on the flat surface 44 regardless of the angular position of the rotary wheel member 30.
It is pressed against the fixed tubular stem shaft 32 having.

The first drive member of the rotating wheel member 30 is a tooth 46.
The tooth 46 is longer than the other teeth and has a special contour shape. Rotating wheel member 3
Each revolution of 0 causes tooth 46 to engage one tooth of toothed wheel 34 (only a portion of which is shown in FIG. 3). Each time the tooth 46 passes, the toothed wheel 34 advances one step as will be described later.

The wheel 30 also has a pin 48 which constitutes a second drive mechanism. Each time the wheel 30 makes one rotation, the pin 48 moves 5
Engage with one tooth of a wheel 36 having nine teeth, which wheel 36 is allowed to advance one step. Since the moon rotation continues for about 29 days and a half day, or a series of sun conditions, the wheel 36 achieves one rotation in two great shadow periods.

If the stem shaft 32 were perfectly cylindrical, the peripheral edges of the teeth 46 would move along the arc of the circle 50. Before the state shown in the figure is reached, the flat surface of the cam 39 is the edge 5 of the stem shaft 32.
It begins to pivot about 2, which continues until the surface of the cam 39 lies flat against the flat surface 44.
The cam 39 then pivots around the edge 54 of the stem shaft 32. At the angle of rotation dominated by the rotating wheel member 30, the rotating wheel member is naturally displaced in the direction of the annular member 35. In this way, the point of the tooth 46 is passed along the curve 56. In other words, in comparison with the case where the intermediate rotary wheel member 30 engages with the rotation axis of the fixed bearing as in the known movement,
The teeth 46 will protrude deeper into the teeth of the annular member 35. In this way, the drive of the annular member 35 is ensured, even if the timepiece movement is of extremely small dimensions.

During the movement described above, the teeth 46 are the teeth 58 of the annular member 35.
The tooth 58 then occupies the position of tooth 60,
Carry teeth 58 with annular member 35 until the edge of jumper 37 passes over the teeth of annular member 35. At this moment, the jumper 37 momentarily completes the advancement of the annular member 35 until the teeth of the annular member 35 are engaged with the next tooth space.

The surface of the cam 39 rotates around the edge 54 of the stem shaft 32, while the rotating wheel member 30 gradually separates from the annular member 35 and approaches the wheel 36. Rotating wheel member 3
During this angle of rotation of 0, the pin 48 moves into the wheel 3
It follows the arcuate curve 62 while engaging the six teeth. The position shown is where the pin 48 has just engaged the tooth 64 of the wheel 36. As the rotation continues, the rotating wheel member 30 drives the tooth 64 with the help of the pin 48 far enough to fit the jumper cooperating with the wheel 36 into the space of the next tooth, and the advancement of this wheel 36 is sudden. Will be completed.

It should be noted that, due to the special movement of the rotating wheel member, the certainty of engagement between the pin 48 and the tooth following the tooth 64 ensures that the rotating wheel rotates in the fixed bearing. It is possible to increase in comparison with that achieved using.

By manipulating the time setting crown to rotate the clock hand counterclockwise, the pin 48 is brought into engagement with the teeth of the wheel 36 which occupy the position of the teeth 64. This causes the wheel 36 to reverse, but this movement is not far enough to engage the corresponding jumper in the preceding tooth space. This is because the pin 48 moves in the opposite direction along the arcuate track 62, causing the pin to move away from the wheel 36 and rapidly disengage from its engagement with the wheel teeth. With this device, the moon phase indicator can be set by continuously turning the clock hand forward or backward. That is, because of this, the pin 48 is first passed behind the tooth occupying the position of the tooth 64 without decisively changing the position of this tooth, and then this tooth 36 is advanced one step forward. Is driven.

Means may be provided for laterally displacing the rotary wheel 30 in order to perform the above-mentioned setting of the moon phase indicator in the best possible condition. By this means, the drive member of the wheel 36 begins to move closer to the wheel, which movement is immediately triggered when another drive member pushes the annular member 35 past its jumper location.

The setting of the annular member 35 is performed similarly. However,
The timepiece movement preferably comprises a normal mechanism which allows the annular member 35 to be driven around the timepiece movement by rotationally driving the time setting crown which has been previously pulled out to the intermediate shaft position.

The driving of the indicator described above is likewise carried out for the manufacture, assembly and protection of the women's wristwatch movement.
The same benefit is achieved if the lunar phase indicator is of the eccentric type. For best results, means are provided for producing lateral movement of the intermediate rotation wheel member, by means of which the intermediate rotation lies at least approximately in the plane passing through the axes of rotation of the two indicators in question. Displace the axis of rotation of the wheel member.

[Brief description of drawings]

FIG. 1 and FIG. 2 are views showing the timepiece movement of the present invention with and without a dial, respectively. 3 and 4 are a plan view and a cross-sectional view, respectively, of the drive mechanism of the time and moon phase indicators. 10 ... Bottom plate, 12 ... Dial, 14 ... Clock hand, 16 ... Crown, 22 ... Date indicator, 24 ... Month phase indicator 26 ... Time wheel, 30 ... Rotating wheel member, 34 ...... 31 toothed wheels, 35 ...... rings, 36 ...... 59 toothed wheels, 37,38 ...... jumper wheels, 39,40 ...... cam surface, 42 ...... elasticity arm.

Claims (7)

[Claims] 1. A timepiece movement having date and month phase indicators, the date indicator having 31 teeth, the moon phase indicator being integral with a wheel having 59 teeth, an intermediate rotating wheel. Is rotated by the timepiece movement so as to rotate once every 24 hours, so that the indicator is advanced by one step for each rotation, and when the intermediate rotation wheel rotates by a predetermined angle, the intermediate rotation wheel moves to the date. A date and month phase, characterized in that it is moved in the direction of the teeth of the indicator and when the intermediate rotating wheel is rotated by another predetermined angle, said intermediate rotating wheel is moved in the direction of the wheel having 59 teeth. A clock movement with an indicator. 2. The timepiece movement according to claim 1, wherein the intermediate rotation wheel comprises a first drive member and a second drive member, the first drive member being a tooth of a date indicator. Engaging and advancing it one step as the intermediate rotating wheel moves in the direction of the teeth, said second drive member engaging one tooth of a wheel having 59 teeth. Then, the timepiece movement which advances the wheel by one step when the intermediate rotation wheel moves in the direction of the wheel having 59 teeth. 3. The timepiece movement according to claim 2, wherein the intermediate rotating wheel is a gear wheel, and the intermediate rotating wheel is a first wheel of the gear wheel.
One of the drive members of the is longer than the other,
A timepiece movement in which the second drive member is a pin device in the gear. 4. The timepiece movement according to claim 2, wherein the axis of the intermediate rotating wheel member is displaced in a plane passing between the axis of rotation of the date indicator and the axis of the wheel having 59 teeth. Watch movements. 5. The timepiece movement according to claim 3, wherein the intermediate rotating wheel member is rotationally driven by a toothed wheel meshing with the time wheel, and the wheel having 59 teeth and the date indicator are coaxial with the time wheel. Watch movement. 6. The timepiece movement according to claim 2, wherein the movement of the second drive member in the direction of the wheel with 59 teeth crosses a jumper point which immobilizes the date indicator in its rest position. A timepiece movement which is started immediately after the first drive member presses the date indicator. 7. A date indicator mounted on a toothed wheel with 31 teeth, a moon phase indicator mounted on a toothed wheel with 59 teeth, every 24 hours. An intermediate rotating wheel member driven by a timepiece movement to rotate once, a toothed wheel with said 31 teeth and said 59 tooth with said intermediate rotating wheel member at a predetermined angle during rotation A toothed wheel having 31 teeth and a toothed wheel having 59 teeth for each rotation of the intermediate wheel member. Drive means for rotating so as to advance by a space corresponding to each tooth, first moving means for moving the intermediate wheel member toward the wheel having 31 teeth by a first predetermined rotation angle, The intermediate wheel member with the 31 teeth Tsu and toward the wheel the second second moving means for a predetermined rotation angle movement, clock movement with and.